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一、问题的提出 化学是一门能满足社会需要的中心学科,就人类生活生产而言,吃、穿、住、用、农、轻、重,无不密切地依赖化学。化学的实用性、经济性和实验性,使这门课程受到绝大多数中学生的喜爱。 但据有关调查统计,约有8％的学生不喜欢化学。调查原因,主要有4个:(1)认为化学药品有毒,会影响健康或致癌;(2)认为化学会造成污染,影响生态环境;(3)认为化学实验有危险,会发生爆炸等;(4)认为化学知识杂乱无
First, the issue proposed Chemistry is a central subject that can meet the needs of society. As far as human life production is concerned, food, clothing, shelter, use, agriculture, lightness, and weight are all closely dependent on chemistry. The practicality, economy, and experimentation of chemistry make this course a favorite for most middle school students. However, according to the survey statistics, about 8% of students do not like chemistry. There are four main reasons for the investigation: (1) chemical drugs are believed to be toxic and affect health or cancer; (2) chemicals are considered to cause pollution and affect the ecological environment; (3) chemical experiments are considered dangerous and explosions occur; ( 4) think chemistry knowledge is messy